Hinotori

Hinotori was a Japanese satellite, launched by ISAS (Institute
of Space and Astronautical Science), principally to investigate X-rays from the Sun. It carried high-resolution soft (longer wavelength) X-ray
spectrometers and hard (shorter wavelength) X-ray instruments that obtained
the first images of solar flares at energies above 25 keV, and also observed
celestial X-ray bursts. Hinotori, which means "phoenix," was known before
launch as Astro-A (see also Astro- series).